A nurse is providing teaching to a client following surgery to repair a detached retina of the left eye. Which of the following instructions should the nurse include in the teaching?

Choice A reason: Using three-pronged grounded plugs ensures proper grounding, reducing the risk of electrical fires by safely dissipating excess current. This prevents shocks and short circuits, aligning with National Fire Protection Association (NFPA) standards. Grounded plugs are essential for safe appliance use, making this a critical recommendation for fire prevention education.
Choice B reason: Checking for a tingling sensation around a cord is not a reliable or safe method for fire prevention. Tingling may indicate electrical faults, but proactive measures like inspecting cords for fraying or overheating are more effective. This approach is reactive and risky, as it does not prevent fires, making it inappropriate.
Choice C reason: Covering extension cords with a rug traps heat and increases wear, raising the risk of electrical fires. Cords should be exposed to air and placed to avoid damage or tripping hazards. This practice violates safety guidelines, as it conceals potential issues, making it an incorrect recommendation for fire prevention.
Choice D reason: Removing a plug by pulling the cord can damage insulation or wiring, increasing fire risk due to exposed conductors or short circuits. Plugs should be grasped firmly at the base to remove safely. This action is unsafe and contradicts electrical safety standards, making it an incorrect teaching point.

Choice A reason: Advising over-the-counter medications as safe is incorrect, as many, like NSAIDs, increase warfarin’s bleeding risk by inhibiting platelets or affecting liver metabolism. Warfarin’s narrow therapeutic index requires careful management to prevent hemorrhage, making broad safety claims dangerous without specific evaluation.
Choice B reason: Consulting the pharmacist identifies interactions with warfarin, a vitamin K antagonist metabolized by CYP450 enzymes. Many drugs alter warfarin’s efficacy, risking thrombosis or bleeding. Pharmacist expertise ensures safe polypharmacy, maintaining therapeutic INR levels critical for managing pulmonary emboli effectively.
Choice C reason: Recommending warfarin with other medications ignores interaction risks and timing needs. Warfarin’s absorption is unaffected by timing, but CYP450 interactions can alter INR. This advice is irrelevant to safety, missing the need for individualized regimen assessment to prevent complications in anticoagulation therapy.
Choice D reason: Cranberry juice may enhance warfarin’s effect by inhibiting CYP2C9, increasing INR and bleeding risk. Advising its use without monitoring is unsafe, as dietary factors can destabilize anticoagulation, potentially causing hemorrhage in clients with pulmonary emboli, requiring careful dietary guidance.